./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:18:41,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:18:41,966 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:18:41,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:18:41,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:18:41,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:18:42,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:18:42,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:18:42,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:18:42,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:18:42,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:18:42,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:18:42,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:18:42,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:18:42,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:18:42,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:18:42,004 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:18:42,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:18:42,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:18:42,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:18:42,006 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:18:42,007 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:18:42,007 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:18:42,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:18:42,008 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:18:42,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:18:42,008 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:18:42,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:18:42,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:18:42,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:18:42,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:18:42,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:18:42,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:18:42,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:18:42,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:18:42,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:18:42,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:18:42,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:18:42,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:18:42,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:18:42,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:18:42,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:18:42,013 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 [2024-11-20 17:18:42,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:18:42,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:18:42,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:18:42,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:18:42,297 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:18:42,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-20 17:18:43,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:18:43,962 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:18:43,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-20 17:18:43,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19eb82b2e/65c45c9d09d54155960723d04c0f59d4/FLAG06bd2d2eb [2024-11-20 17:18:44,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19eb82b2e/65c45c9d09d54155960723d04c0f59d4 [2024-11-20 17:18:44,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:18:44,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:18:44,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:18:44,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:18:44,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:18:44,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a7c9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44, skipping insertion in model container [2024-11-20 17:18:44,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:18:44,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:18:44,788 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:18:44,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:18:44,879 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:18:44,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44 WrapperNode [2024-11-20 17:18:44,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:18:44,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:18:44,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:18:44,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:18:44,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,937 INFO L138 Inliner]: procedures = 173, calls = 62, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 478 [2024-11-20 17:18:44,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:18:44,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:18:44,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:18:44,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:18:44,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,956 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,976 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-20 17:18:44,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:44,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:45,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:45,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:45,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:18:45,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:18:45,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:18:45,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:18:45,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (1/1) ... [2024-11-20 17:18:45,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:18:45,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:18:45,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 17:18:45,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:18:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 17:18:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 17:18:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 17:18:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:18:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:18:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:18:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 17:18:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:18:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:18:45,123 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:18:45,309 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:18:45,313 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:18:45,872 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:18:45,872 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:18:46,567 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:18:46,568 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 17:18:46,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:18:46 BoogieIcfgContainer [2024-11-20 17:18:46,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:18:46,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:18:46,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:18:46,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:18:46,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:18:44" (1/3) ... [2024-11-20 17:18:46,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef0f42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:18:46, skipping insertion in model container [2024-11-20 17:18:46,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:18:44" (2/3) ... [2024-11-20 17:18:46,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef0f42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:18:46, skipping insertion in model container [2024-11-20 17:18:46,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:18:46" (3/3) ... [2024-11-20 17:18:46,580 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-20 17:18:46,598 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:18:46,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-20 17:18:46,599 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:18:46,699 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:18:46,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 201 transitions, 406 flow [2024-11-20 17:18:46,855 INFO L124 PetriNetUnfolderBase]: 48/205 cut-off events. [2024-11-20 17:18:46,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:18:46,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 205 events. 48/205 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 946 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 198. Up to 10 conditions per place. [2024-11-20 17:18:46,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 201 transitions, 406 flow [2024-11-20 17:18:46,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 201 transitions, 406 flow [2024-11-20 17:18:46,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:18:46,892 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4fe3f4cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:18:46,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-20 17:18:46,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:18:46,914 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-20 17:18:46,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:18:46,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:18:46,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 17:18:46,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-20 17:18:46,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:18:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1182352, now seen corresponding path program 1 times [2024-11-20 17:18:46,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:18:46,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373061745] [2024-11-20 17:18:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:18:46,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:18:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:18:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:18:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:18:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373061745] [2024-11-20 17:18:47,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373061745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:18:47,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:18:47,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:18:47,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390568124] [2024-11-20 17:18:47,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:18:47,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 17:18:47,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:18:47,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 17:18:47,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 17:18:47,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 201 [2024-11-20 17:18:47,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 201 transitions, 406 flow. Second operand has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:18:47,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:18:47,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 201 [2024-11-20 17:18:47,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:18:47,670 INFO L124 PetriNetUnfolderBase]: 132/346 cut-off events. [2024-11-20 17:18:47,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:18:47,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 346 events. 132/346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1523 event pairs, 84 based on Foata normal form. 26/327 useless extension candidates. Maximal degree in co-relation 621. Up to 284 conditions per place. [2024-11-20 17:18:47,676 INFO L140 encePairwiseOnDemand]: 185/201 looper letters, 100 selfloop transitions, 0 changer transitions 0/132 dead transitions. [2024-11-20 17:18:47,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 132 transitions, 468 flow [2024-11-20 17:18:47,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 17:18:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-20 17:18:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 222 transitions. [2024-11-20 17:18:47,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5522388059701493 [2024-11-20 17:18:47,692 INFO L175 Difference]: Start difference. First operand has 156 places, 201 transitions, 406 flow. Second operand 2 states and 222 transitions. [2024-11-20 17:18:47,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 132 transitions, 468 flow [2024-11-20 17:18:47,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 132 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 17:18:47,699 INFO L231 Difference]: Finished difference. Result has 112 places, 132 transitions, 268 flow [2024-11-20 17:18:47,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=112, PETRI_TRANSITIONS=132} [2024-11-20 17:18:47,706 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -44 predicate places. [2024-11-20 17:18:47,707 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 132 transitions, 268 flow [2024-11-20 17:18:47,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:18:47,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:18:47,707 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-11-20 17:18:47,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:18:47,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-20 17:18:47,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:18:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1136571478, now seen corresponding path program 1 times [2024-11-20 17:18:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:18:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928574102] [2024-11-20 17:18:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:18:47,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:18:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:18:47,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:18:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:18:47,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 17:18:47,949 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:18:47,951 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-20 17:18:47,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (22 of 24 remaining) [2024-11-20 17:18:47,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (21 of 24 remaining) [2024-11-20 17:18:47,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (20 of 24 remaining) [2024-11-20 17:18:47,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (19 of 24 remaining) [2024-11-20 17:18:47,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (18 of 24 remaining) [2024-11-20 17:18:47,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (17 of 24 remaining) [2024-11-20 17:18:47,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (16 of 24 remaining) [2024-11-20 17:18:47,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (15 of 24 remaining) [2024-11-20 17:18:47,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (14 of 24 remaining) [2024-11-20 17:18:47,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (13 of 24 remaining) [2024-11-20 17:18:47,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (12 of 24 remaining) [2024-11-20 17:18:47,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 24 remaining) [2024-11-20 17:18:47,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (10 of 24 remaining) [2024-11-20 17:18:47,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 24 remaining) [2024-11-20 17:18:47,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (8 of 24 remaining) [2024-11-20 17:18:47,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (7 of 24 remaining) [2024-11-20 17:18:47,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (6 of 24 remaining) [2024-11-20 17:18:47,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 24 remaining) [2024-11-20 17:18:47,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (4 of 24 remaining) [2024-11-20 17:18:47,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (3 of 24 remaining) [2024-11-20 17:18:47,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (2 of 24 remaining) [2024-11-20 17:18:47,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (1 of 24 remaining) [2024-11-20 17:18:47,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (0 of 24 remaining) [2024-11-20 17:18:47,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:18:47,960 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-20 17:18:47,962 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 17:18:47,964 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 17:18:48,072 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:18:48,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 396 transitions, 802 flow [2024-11-20 17:18:48,156 INFO L124 PetriNetUnfolderBase]: 96/404 cut-off events. [2024-11-20 17:18:48,156 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:18:48,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 404 events. 96/404 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2416 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 392. Up to 10 conditions per place. [2024-11-20 17:18:48,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 396 transitions, 802 flow [2024-11-20 17:18:48,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 396 transitions, 802 flow [2024-11-20 17:18:48,185 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:18:48,186 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4fe3f4cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:18:48,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-20 17:18:48,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:18:48,194 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-20 17:18:48,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:18:48,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:18:48,195 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 17:18:48,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-20 17:18:48,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:18:48,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1575580, now seen corresponding path program 1 times [2024-11-20 17:18:48,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:18:48,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049176542] [2024-11-20 17:18:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:18:48,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:18:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:18:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:18:48,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:18:48,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049176542] [2024-11-20 17:18:48,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049176542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:18:48,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:18:48,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:18:48,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587232259] [2024-11-20 17:18:48,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:18:48,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 17:18:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:18:48,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 17:18:48,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 17:18:48,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 396 [2024-11-20 17:18:48,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 396 transitions, 802 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:18:48,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:18:48,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 396 [2024-11-20 17:18:48,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:18:52,682 INFO L124 PetriNetUnfolderBase]: 28984/48470 cut-off events. [2024-11-20 17:18:52,682 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-11-20 17:18:52,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90479 conditions, 48470 events. 28984/48470 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 397219 event pairs, 22142 based on Foata normal form. 4478/45468 useless extension candidates. Maximal degree in co-relation 88449. Up to 41746 conditions per place. [2024-11-20 17:18:53,036 INFO L140 encePairwiseOnDemand]: 365/396 looper letters, 198 selfloop transitions, 0 changer transitions 0/261 dead transitions. [2024-11-20 17:18:53,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 261 transitions, 928 flow [2024-11-20 17:18:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 17:18:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-20 17:18:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 437 transitions. [2024-11-20 17:18:53,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517676767676768 [2024-11-20 17:18:53,040 INFO L175 Difference]: Start difference. First operand has 305 places, 396 transitions, 802 flow. Second operand 2 states and 437 transitions. [2024-11-20 17:18:53,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 261 transitions, 928 flow [2024-11-20 17:18:53,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 261 transitions, 928 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 17:18:53,048 INFO L231 Difference]: Finished difference. Result has 219 places, 261 transitions, 532 flow [2024-11-20 17:18:53,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=532, PETRI_PLACES=219, PETRI_TRANSITIONS=261} [2024-11-20 17:18:53,049 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -86 predicate places. [2024-11-20 17:18:53,049 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 261 transitions, 532 flow [2024-11-20 17:18:53,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:18:53,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:18:53,050 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2024-11-20 17:18:53,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:18:53,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-20 17:18:53,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:18:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash -402823165, now seen corresponding path program 1 times [2024-11-20 17:18:53,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:18:53,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847914095] [2024-11-20 17:18:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:18:53,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:18:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:18:53,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:18:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:18:53,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 17:18:53,254 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:18:53,255 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-20 17:18:53,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (33 of 35 remaining) [2024-11-20 17:18:53,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (32 of 35 remaining) [2024-11-20 17:18:53,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (31 of 35 remaining) [2024-11-20 17:18:53,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (30 of 35 remaining) [2024-11-20 17:18:53,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (29 of 35 remaining) [2024-11-20 17:18:53,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (28 of 35 remaining) [2024-11-20 17:18:53,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (27 of 35 remaining) [2024-11-20 17:18:53,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (26 of 35 remaining) [2024-11-20 17:18:53,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (25 of 35 remaining) [2024-11-20 17:18:53,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (24 of 35 remaining) [2024-11-20 17:18:53,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (23 of 35 remaining) [2024-11-20 17:18:53,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (22 of 35 remaining) [2024-11-20 17:18:53,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (21 of 35 remaining) [2024-11-20 17:18:53,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (20 of 35 remaining) [2024-11-20 17:18:53,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (19 of 35 remaining) [2024-11-20 17:18:53,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (18 of 35 remaining) [2024-11-20 17:18:53,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (17 of 35 remaining) [2024-11-20 17:18:53,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (16 of 35 remaining) [2024-11-20 17:18:53,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (15 of 35 remaining) [2024-11-20 17:18:53,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (14 of 35 remaining) [2024-11-20 17:18:53,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (13 of 35 remaining) [2024-11-20 17:18:53,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (12 of 35 remaining) [2024-11-20 17:18:53,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (11 of 35 remaining) [2024-11-20 17:18:53,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (10 of 35 remaining) [2024-11-20 17:18:53,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 35 remaining) [2024-11-20 17:18:53,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (8 of 35 remaining) [2024-11-20 17:18:53,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (7 of 35 remaining) [2024-11-20 17:18:53,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (6 of 35 remaining) [2024-11-20 17:18:53,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 35 remaining) [2024-11-20 17:18:53,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (4 of 35 remaining) [2024-11-20 17:18:53,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (3 of 35 remaining) [2024-11-20 17:18:53,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (2 of 35 remaining) [2024-11-20 17:18:53,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (1 of 35 remaining) [2024-11-20 17:18:53,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (0 of 35 remaining) [2024-11-20 17:18:53,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:18:53,265 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-20 17:18:53,265 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 17:18:53,266 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 17:18:53,371 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:18:53,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 454 places, 591 transitions, 1200 flow [2024-11-20 17:18:53,619 INFO L124 PetriNetUnfolderBase]: 144/603 cut-off events. [2024-11-20 17:18:53,619 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 17:18:53,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 603 events. 144/603 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4032 event pairs, 0 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 586. Up to 10 conditions per place. [2024-11-20 17:18:53,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 454 places, 591 transitions, 1200 flow [2024-11-20 17:18:53,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 591 transitions, 1200 flow [2024-11-20 17:18:53,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:18:53,649 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4fe3f4cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:18:53,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-20 17:18:53,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:18:53,655 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-20 17:18:53,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:18:53,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:18:53,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 17:18:53,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-20 17:18:53,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:18:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2162443, now seen corresponding path program 1 times [2024-11-20 17:18:53,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:18:53,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375142860] [2024-11-20 17:18:53,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:18:53,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:18:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:18:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:18:53,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:18:53,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375142860] [2024-11-20 17:18:53,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375142860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:18:53,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:18:53,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:18:53,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152361169] [2024-11-20 17:18:53,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:18:53,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 17:18:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:18:53,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 17:18:53,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 17:18:53,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 591 [2024-11-20 17:18:53,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 591 transitions, 1200 flow. Second operand has 2 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:18:53,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:18:53,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 591 [2024-11-20 17:18:53,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand